Cooperative investigations on degradation of cathode materials in segment-in-series cells by MHI

Harumi Yokokawa, Haruo Kishimoto, Katsuhiko Yamaji, Teruhisa Horita, Takao Watanabe, Tohru Yamamoto, Koichi Eguchi, Toshiaki Matsui, Kazunari Sasaki, Yusuke Shiratori, Tatsuya Kawada, Kazuhisa Sato, Toshiyuki Hashida, Atsushi Unemoto, Tatsuo Kabata, Kazuo Tomida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Segment-in-series cell fabricated by Mitsubishi Heavy Industries have been investigated from various experimental approaches. Examined samples are type 1 cells which were operated for up to 10,000 h by CRIEPI. Analyses were made by AIST on materials transport with dynamic SIMS, by CRIEPI on microstructure observation with EPMA, by Kyoto University on microstructure change with FIB-SEM, by Kyushu University on chemical states with S-TEM, and by Tohoku University on mechanical properties in the microscopic zone with micro indentation technique. On the bases of accumulated knowledge on these samples, the materials deterioration model has been established with a focus on the movement of the Ca component in the cathode layers. The degradation rate observed in the analyses by CRIEPI can be interpreted in terms of the Cr deposited on the three phase boundaries and also of the change in microstructure.

Original languageEnglish
Title of host publicationSolid Oxide Fuel Cells 12, SOFC XII
Pages2191-2200
Number of pages10
Edition3 PART 3
DOIs
Publication statusPublished - Dec 1 2011
Event12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting - Montreal, QC, Canada
Duration: May 1 2011May 6 2011

Publication series

NameECS Transactions
Number3 PART 3
Volume35
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th International Symposium on Solid Oxide Fuel Cells, SOFC-XII - 219th ECS Meeting
CountryCanada
CityMontreal, QC
Period5/1/115/6/11

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All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Yokokawa, H., Kishimoto, H., Yamaji, K., Horita, T., Watanabe, T., Yamamoto, T., ... Tomida, K. (2011). Cooperative investigations on degradation of cathode materials in segment-in-series cells by MHI. In Solid Oxide Fuel Cells 12, SOFC XII (3 PART 3 ed., pp. 2191-2200). (ECS Transactions; Vol. 35, No. 3 PART 3). https://doi.org/10.1149/1.3570212